Revert of Fix computation of runtime for throttled tasks

components/scheduler/base/virtual_time_domain.cc

Index: components/scheduler/base/virtual_time_domain.cc
diff --git a/components/scheduler/base/virtual_time_domain.cc b/components/scheduler/base/virtual_time_domain.cc
index 86108b20368612f1b6fc903fad2fd59f8733ec30..db9c4035b29f35eb3668a3ebffdb2ab53375b9ae 100644
--- a/components/scheduler/base/virtual_time_domain.cc
+++ b/components/scheduler/base/virtual_time_domain.cc
@@ -33,12 +33,6 @@ base::TimeTicks VirtualTimeDomain::Now() const {
   return now_;
 }
 
-base::TimeTicks VirtualTimeDomain::ComputeDelayedRunTime(
-    base::TimeTicks time_domain_now,
-    base::TimeDelta delay) const {
-  return time_domain_now + delay;
-}
-
 void VirtualTimeDomain::RequestWakeup(base::TimeTicks now,
                                       base::TimeDelta delay) {
   // We don't need to do anything here because the caller of AdvanceTo is